Dudley wright



D. WRIGHT.

LIQUID FUEL BURNER.

APPLICATION FILED'JAN'. a. 1917.

Patented Aug. 30, 1921.

PATENT OFFICE.

DUDLEY WRIGHT, OF BANKFIELD, ULVERSTON, ENGLAND.

LIQUID-FUEL BURNER.

Specification of Letters Patent.

Patented Aug. 30. 1921.

Application filed January 8, 1917. Serial No. 141,136.

To all whom it may concern:

Be it known that I, DUDLEY WRIGHT, a subject of the King of England, residing at Bankfield, Ulverston, in the county of Lancaster, England, have invented certain new and useful Improvements in Liquid- Fuel Burners, of which the following is a specification.

This invention relates to liquid fuel burners.

The present invention is characterized by the employment of a fuel atomizing receptaeleof taper, bell, or other suitable shape or confi uration which embodies a diverging wall or walls-arranged within an air conduit, but so that the larger end is uninclosed thereby, said receptacle being revolubly mounted on a fuel supply pipe or in any other convenient manner, so that the fuel is delivered to the interior thereof; and formed or provided with means, such as a vane or vanes, whereby it or they is or are rotated for the purpose of atomizing the fuel, either solely by air used in the combustion thereof, or by means of said pressure assisted by an auxiliary pressure of air or steam led directly to said vane or vanes, or their equivalent, or by steam pressure alone acting on said vanes.

Generally, the pressure of air em loyed in the combustion of the fuel is su 'cient to maintain said atomizin receptacle or receptacles at the desired igh speed of rotation, but in some cases it may be desirable or necessary to supplement this by an auxiliary pressure or air or steam led directly to the vane and vanes or its or their equivalent; or, as before stated, I may rotate said receptacle or receptacles by steam pressure alone acting on said vanes.

Said atomizing receptacle may be formed or provided with serrations, corrugations, or other suitable devices or means which will assist in the breaking up of the fuel into a fine state of subdivision, and/or it may be formed or rovided with fiutings or the like with the ob ect of increasing the area presented to the fuel when passing through same.

According to a preferred construction of atomizer or burner embodying my invention, there is provided an air conduit, pipe, or tube, into which is led a fixed or stationary oil pipe or tube, a portion whereof enters said air conduit and lies parallel and preferably concentric with the wall of said air conduit; and near the outer end of the interior portion of said oil pipe there is rotatably disposedbeing preferably mounted on ball, roller, or other suitable bearingssaid atomizing receptacle, which, in preferred arrangement, is disposed within a suitable open-ended casing forming, in effeet, the mouth of the burner.

In use, air under pressure is forced through said air conduit, and, meeting the vanes, blades, or the like of said receptacle, causes same to rotate and break up the oil issuing therefrom, the atomized oil being then carried by the air into the furnace or other place where it is required to be consumed.

I will further describe my invention with the aid of the accompanying sheet of explanatory drawings, which illustrate, by way of examples only, two modes of embodymg same.

In said drawings Figure 1 is an elevation, partlv in section, of an oil fuel burner, Fig. 2 being a longitudinal section and Fig. 3 a front view, of the atomizing receptacle, drawn to an enlar ed scale as compared with Fig. 1.

igs. 4 and 5 are, respectively, longitudinal section, and front view, illustrating a modified construction of atomizing receptacle.

In the several views like characters of reference denote like or equivalent parts wherever they occur.

Referring to the drawings or represents an air pipe or tube in which is disposed a portion of the oil supply pipe 6, on which latter pipe is mounted a metal receptacle 0 provided with vanes or blades (1 33d having serrations 6 formed on its outer e e.

aid receptacle 0 is mounted on said pipe b by means of ball bearings f which are protected by a shield g; the major portion of said receptacle 0 is covered by a casing h the end It whereof being preferably inturned as shown.

On air under pressure being forced through said pipe a in the direction of the arrows, its impingement on said vanes (1 causes said receptacle 0 to rotate at high speed, with the effect that the oil led into same by means of ipe b is atomized and discharged into the fiirnace.

Referrin to a modified construction illustrated in igs. 4 and 5, in lieu of or in addition. to the edge serrations 0 shown in Figs. 1 to 3, said receptacle 0 is provided with longitudinal flutings z which increase the effective area of the receptacle.

It is to be understood that said receptacle which may be open at both ends, or the outer end only, as illustrated, may be plain, and the length and/or amount of taper of same will vary, of course, according to circumstances and requirements.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a liquid fuel burner, an air conduit; a fuel atomizing receptacleof tapering configuration, so disposed in relation to said air conduit that its larger end projects beyond the discharge end of said air conduit; serrations formed at the larger end of said receptacle; a fuel supply pipe adapted to deliver fuel to the interior of said receptacle; and means whereby said receptacle may be rotated by gaseous pressure for the purpose of atomizingthe fuel.

2. In a liquid fuel burner, an air conduit; a fuel supply pipe; a fuel atomizing receptacle of tapering configuration revolubly mounted on said fuel supply pipe, and so disposedinv relation to said air conduit that its laarger end projects beyond the discharge end of said air conduit; serrations formed at the larger end of said receptacle; and

means whereby said receptacle may be r0- tated by gaseous pressure for the purpose of atomizing the fuel.

3. In a liquid fuel burner, an air conduit; a fuel atomizing receptacle of tapering configuration, so dis osed in relation to said air conduit that its arger end projects beyond the discharge end of said air conduit; longitudinal flutings formed in said receptacle; serrations formed at the larger end of said receptacle; a fuel supply pipe adapted to deliver fuel to the interior of said receptacle;

and means whereby said receptacle may be rotated by gaseous pressure for the purpose of atomizing the fuel.

4. In a liquid fuel burner, an air conduit; a fuel atomizing receptacle of tapering configuration, so disposed in relation to said air conduit that its larger end projects beyond the discharge end of said air conduit; longitudinal flutings formed in said receptacle, serrations formed at the larger end of said receptacle; bearings arranged between said receptacle and said fuel supply pipe; and means whereby said receptacle may be rotated by gaseous pressure for the purpose of atomizing fuel.

5. In a liquid fuel atomizer adapted for burner purposes, a cylindrical casing for the discharge of air under pressure, and a rotary fuel atomizing receptacle in said casing rotated by the discharge of air under pressure and providing an annular fuel film forming discharge edge, said atomizing receptacle cooperating with, said casing in forming a chamber whollywithin said casing which has its outer discharge end restricted to increase the velocity of air at the film forming discharge edge of said receptacle.

6. As a new article of manufacture, a rotary fuel atomizing receptacle having di-- verging walls providing an unobstructed passage from the inner end of said receptacle to the outer end thereof, said Walls having outer portions thereof'constructed and arranged so that air impinging against the outer walls may impart a rotary movement to said receptacle, and its outer end edges relatively thin and formed to produce a film discharging edge for fuel. 7

In testimony whereof I affix my signature in the presence of tWo Witnesses.

DUDLEY WRIGHT.

WVitnesses JOHN H. WALKER, EMILY BURNETT. 

